It analyzes the track using a psychoacoustic algorithm to determine how loud it to the human ear.
Rather than altering the music itself, we apply ReplayGain . This technology analyzes the file and adds tags that tell your media player how to adjust the volume on the fly to match a set standard (usually -18 dB to -23 dB, or around 89dB SPL). Methods for Fixing FLAC Gain (ReplayGain) There are two main ways to handle FLAC gain: flac gain fix
(available for Windows, macOS via Homebrew, and Linux). It analyzes the track using a psychoacoustic algorithm
Many Digital Audio Players (iBasso, FiiO, Sony Walkman) support ReplayGain, but they are often picky. Methods for Fixing FLAC Gain (ReplayGain) There are
acts like an automated assistant standing by your volume knob.
(This scans all tracks, calculates loudness based on the latest ITU-R BS.1770-4 standard, and writes the tags directly.)
The most reliable method uses (FLAC utilities) to remove old tags and replaygain to recompute.
Lisa Wade, PhD